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Biodegradation Potentials of Aspergillus Flavipes Isolated from Uburu and Okposi Salt Lakes

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Biodegradation Potentials of Aspergillus Flavipes Isolated from Uburu and Okposi Salt Lakes


Kingsley C. Agu | Frederick J. C. Odibo



Kingsley C. Agu | Frederick J. C. Odibo "Biodegradation Potentials of Aspergillus Flavipes Isolated from Uburu and Okposi Salt Lakes" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5, August 2021, pp.1160-1170, URL: https://www.ijtsrd.com/papers/ijtsrd44949.pdf

Saline lakes are water bodies with salinity greater than 3 g/l (0.3%), while hypersaline lakes are water bodies that surpass the moderate 35 g/l (3.5%) salt of oceans. Hypersaline lakes, could either be thalassohaline (which are creations of evaporation of seawater and as such contain sodium chloride as the major salt, with a salinity that surpasses that of seawater by a factor of 5–10, with a neutral or slightly alkaline pH). Whereas, athalassohaline lakes stem from non-seawater sources and are made up of high concentrations of ions such as magnesium and calcium and sundry other ions such as potassium, or sodium in smaller amounts. This work has revealed the biodegradation potentials of some halophiles isolated from Uburu and Okposi salt lakes. The isolates recovered in descending order of salt tolerance were Aspergillus flavipes (13mm at 40%), Penicillium citrinum (10mm at 40%), Aspergillus ochraceus (9mm at 40%), Aspergillus nomius (15mm at 35%), Microsphaeropsis arundinis (12mm at 35%), Aspergillus sydowi (28mm at 30%), Penicillium janthinellum (26mm at 30%), Mucor sp (13mm at 30%), Aureobasidium sp (12mm at 30%), Trichoderma sp (9mm at 30%), Alternaria sp. (22mm at 25%), Aspergillus sp (18mm at 25%), Penicillium sp (20mm at 20%), Cladosporium sp. (7mm at 15%) and identified using ITS rDNA Sequencing (Macrogen, South Korea). They belonged to the borderline extreme halophiles and moderate halophiles respectively. The biodegradative potential of Aspergillus flavipes was ascertained by testing it against 2%, 4% and 6% crude oil and it grew only on 2 % crude oil-Bushnell-Haas broth with a fungal count of 2.56x105 cfu/ml. Crude oil degradation rate was evaluated biweekly gravimetrically with 22% degradation in 2 weeks, 36% in 4 weeks, 67% in 6 weeks and 89% in 8 weeks; as well as by way of gas chromatography (GC-FID), which showed that fractions C10-C11 were significantly degraded, C12-C20, moderately degraded and C26-C34, insignificantly degraded.

Biodegradation, Potentials, Aspergillus flavipes, Uburu, Okposi, Salt Lakes


IJTSRD44949
Volume-5 | Issue-5, August 2021
1160-1170
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.

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